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2012
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Questions Asked on March 15, 2012

Hi, I'm having a difficult time understanding a couple of Geometry questions on my homework and I'd really appreciate it if
1. 17 answers
2. asked by Tyler
3. 16,777 views
Consider the decomposition of a metal oxide to its elements, where M represents a generic metal.M203(s)---> 2M(s) + 3/2 O2(g)
1. 10 answers
2. asked by Kelsey
3. 13,327 views
A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis
1. 15 answers
2. asked by Jerry
3. 12,652 views
When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced.O2M(s) ----> M(s) +O2(g)
1. 9 answers
2. asked by Jerry
3. 10,627 views
R varies jointly as S and the square of T. If R is 32.4 when S=0.2 and T=9, find R when S=0.5 and T=5. I believe the answer is
1. 3 answers
2. asked by Allie
3. 8,175 views
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0
1. 2 answers
2. asked by James
3. 7,023 views
A LIGHTHOUSE IS 10 MILES NORTHEAST OF A DOCK. A SHIP LEAVES THE DOCK AT NOON,AND SAILS EAST AT A SPEED OF 12 MILES AN HOUR. AT
1. 2 answers
2. asked by Shihara
3. 5,899 views
Roosevelt's New Deal differed from Hoover's administration in that the New Deal was willing to use government power to adjust
1. 7 answers
2. asked by henry
3. 3,220 views
Determine the mass of zinc sulphide, ZnS, produced when 6.2g of zinc and 4.5g of sulphur are reacted.Equation given: Zn + S8 >>
1. 5 answers
2. asked by Hannah
3. 3,122 views
Suppose that y = f(x) = x^2 - 4x + 4.Then on any interval where the inverse function y = f-1(x) exists, thederivative of y =
1. 3 answers
2. asked by Anonymous
3. 2,928 views
Calculate ΔSfus and ΔSvap for HF.Determine the entropy change when 7.60 mol of HF(l) freezes at atmospheric pressure. I
1. 8 answers
2. asked by Brian
3. 2,846 views
While trying to decide where to hang a framed picture, you press it against the wall to keep it from falling. The picture weighs
1. 2 answers
2. asked by tharidu
3. 2,182 views
A planet has a mass of 7.93 × 1023 kg and a radius of 2.58 × 106 m. (a) What is the acceleration due to gravity on this
1. 3 answers
2. asked by Anonymous
3. 2,148 views
A 1470-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16070 N on the sub,
1. 6 answers
2. asked by Anonymous
3. 2,059 views
making lemonade requires water and lemon juice in the ratio of 3 cups of water to 2 cups of lemon juice. You need a total of 10
1. 3 answers
2. asked by Kevin
3. 1,861 views
thomas borrowed $4800 to buy a new car. he will be paying $96 each month for the next 60 months. find the simple interest rate
1. 3 answers
2. asked by Cassandra
3. 1,729 views
An urn contains six red balls and five white balls. A sample of 2 balls is selected at random from the urn. What is the
1. 1 answer
2. asked by Amanda
3. 1,706 views
Dry saturated steam at 100 degree C is passed into 250 gm of a mixture of ice and water contained in a calorimeter of thermal
1. 1 answer
2. asked by AFOLABI .O.
3. 1,663 views
A doctor needs at least 60 adults for a medical study. He cannot use more than 40 men in the study. Write a system of
1. 2 answers
2. asked by Kinzie
3. 1,653 views
The coefficient of static friction between a block and a horizontal floor is 0.40, while the coefficient of kinetic friction is
1. 1 answer
2. asked by nuwan
3. 1,629 views
$275 at 7.5% for 4 years?
1. 8 answers
2. asked by linda
3. 1,622 views
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in the figure below. The
1. 1 answer
2. asked by tom
3. 1,558 views
The first row of a concert hall has 20 seats, and each row after the first has one more seat than the row before it. There are
1. 1 answer
2. asked by Please check my answer (:
3. 1,545 views
35.00mL of 0.250M KOH solution is required to completely neutralize 10.50mL of H2SO4 solution. what is the molarity of the
1. 1 answer
2. asked by brina
3. 1,500 views
A ray of light in air strikes a glass plate (n = 1.50) at an incidence angle of 50 degrees. Determine the angles of the
1. 1 answer
2. asked by Darlene
3. 1,499 views
Suppose f(x) = sin(pi cos(x)). On any interval where the inverse function y = f^-1(x) exists, the derivative of f^-1(x) with
1. 1 answer
2. asked by Mooch
3. 1,494 views
1) For the reaction system, 2 SO2(g) + O2(g) = 2 SO3(g), Kc hasa value of 4.62 at 450.0 K (Kelvin). A system, at equilibrium has
1. 3 answers
2. asked by Hannah
3. 1,472 views
The equilibrium constant for the reaction,H2(g) + I2(g) == 2 HI(g) is 54.9 at 699.0 K (Kelvin). What is the equilibrium constant
1. 3 answers
2. asked by Hannah
3. 1,472 views
2) In a certain instant lottery game, the chances of a win stated as "3 in 23". Express the indicated degree of likelihood as a
1. 1 answer
2. asked by Jamie
3. 1,467 views
What is 4x^3 + 8x^2 - 96x in factored form
1. 3 answers
2. asked by TENKAICHI
3. 1,445 views
I did an experiment to study the effects of changes in conditions on an equilibrium system. The first system was the
1. 2 answers
2. asked by Hannah
3. 1,440 views
Identify all horizontal and vertical asymptotes of the graph of the function. f(x)=x^2/x^2-4I know the vertical asymptotes are
1. 1 answer
2. asked by Lynn
3. 1,424 views
A coffee company wants to make sure that there coffee is being served at the right temperature. If it is too hot, the customers
1. 2 answers
2. asked by Rachel
3. 1,381 views
balance this equationNaOH + H2SO4 = NaSO4 + H2O
1. 1 answer
2. asked by Amir
3. 1,362 views
I am currently writing my "Journey" Speech, does anyone know a quote from a famous person who has a quote about journey that is
1. 1 answer
2. asked by Maby
3. 1,318 views
I forgot to add the following data. Thank you very much.1) You should make a short list of the job requirements before going for
1. 1 answer
2. asked by Matthew
3. 1,313 views
A SIDE AND A DIAGONAL OF A PARALELOGRAM ARE 12 INCHES AND 19 INCHES RESPECTIVELY. THE ANGLE BETWEEN THE DIAGONALS, OPPOSITE THE
1. 0 answers
2. asked by Shihara
3. 1,289 views
Writeacher, I urgently need your help to check a few sentences on job.1)When I go to the supermarket, first I get the trolley
1. 1 answer
2. asked by Matthew
3. 1,281 views
Find the critical point(s) of the function.Then use the second derivative test to classify the nature of each point, if
1. 2 answers
2. asked by amalia
3. 1,240 views
a) Show that the relation R on Z x Z defined by (a , b) R (c, d) if and onlyif a + d = b + c is an equivalence relation. b) Show
1. 0 answers
2. asked by Confused!!
3. 1,226 views
a baseball is hit with an initial velocity of 75 feet per second from the height of 3 feet.The function h(t)=-16t squared + 75t
1. 1 answer
2. asked by fee
3. 1,199 views
The coefficient of static friction between a block and a horizontal floor is 0.40, while the coefficient of kinetic friction is
1. 1 answer
2. asked by tharidu
3. 1,198 views
What is a medical scientist,if you want to study medical science,what are the minimum requirements?and how can you briefly
1. 1 answer
2. asked by Cynthia
3. 1,170 views
A bowling ball (mass = 4.4 kg, radius = 0.11 m) and a billiard ball (mass = 0.35 kg, radius = 0.028 m) may each be treated as
1. 2 answers
2. asked by Anonymous
3. 1,166 views
Could anyone help me with this question...Mecury has a density of 13.6g/cm^3 at 20°C.What would be the density of mecury at
1. 1 answer
2. asked by Abraham
3. 1,158 views
4. A coil of wire has 600 metres of wire. Suppose there are 20 nicks (the most common problem with wire) are randomly
1. 0 answers
2. asked by Waseeq.A
3. 1,149 views
What is the subject for the following sentence?The first assignment for this class is this quiz. Answer a. first b. assignment
1. 2 answers
2. asked by toney
3. 1,143 views
Hi, I have to compare Crossing Brooklyn Ferry by Walt Whitman to modern day time. The last couple of journal entries I've
1. 1 answer
2. asked by jon
3. 1,120 views
Find all numbers that must be excluded from the domain of the given rational expression.1) x^2+4x/x^2-16 2)
1. 1 answer
2. asked by Gabby
3. 1,113 views
A 0.23 kg ball of dough is thrown straight up into the air with an initial velocity of 12 m/s.Find the momentum of the ball of
1. 3 answers
2. asked by Chris
3. 1,108 views
Find A, given that a = 18.2, B = 62, and C = 48. Round answers to the nearest whole degree. Do not use a decimal point or extra
1. 1 answer
2. asked by Lucy
3. 1,107 views
a person is standing 40ft from a flagpole and can see the top of the pole at a 35 degree angle of elevation. the persons eye
1. 0 answers
2. asked by victoria
3. 1,095 views
What mass of sulfur msut be used to produce 17.1 L of gaseous sulfur dioxide at STP according to the following equation?S8 (s) +
1. 1 answer
2. asked by Sarah
3. 1,082 views
I know I posted this but you didn't answer! Please help!!!!Consider the following reaction at 298 K: C(graphite) +2Cl2 (g)
1. 8 answers
2. asked by Kelsey
3. 1,076 views
Predict the products when a chemist mixes an aqueous sodium chloride solution with an aqueous calcium nitrate solution.
1. 1 answer
2. asked by Ashley
3. 1,068 views
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0
1. 0 answers
2. asked by Frank
3. 1,058 views
what is the cost to install new carpet in an 15' by 21' room if the price of the carpet including installation is $14.50 a
1. 1 answer
2. asked by rita
3. 1,051 views
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0
1. 2 answers
2. asked by Frank
3. 1,049 views
Use differentials to find the approximate change in the surface area when the radius of the sphere is increased from 10cm to
1. 1 answer
2. asked by Kim
3. 1,024 views
1.Transform the graph of f(x) = 3^x to sketch g(x) = 3^-(x+1) -2. Show table of values and each transformation clearly.2.Write
1. 1 answer
2. asked by kk
3. 1,024 views
Q. Find the minimum value of Q=x^2y subject to the constraint 2x^2+4xy=294.Its the derivative method.
1. 1 answer
2. asked by Samantha
3. 1,019 views
How many mL of 3.00M HNO3 would you need to make exactly 100mL of 0.83 HNO3 by dilution with water? (The FM of HNO3 = 63.0.)
1. 2 answers
2. asked by Lauren
3. 1,007 views
An important reason for why public policy and public opinion may not coincide in the United States is that...a) the American
1. 1 answer
2. asked by tina
3. 987 views
How does a laissez faire economy make the decision about what goods and services will be produced?a.) Lawmakers in government
1. 1 answer
2. asked by Stacy
3. 979 views
You deposit $1000 for 5 years at 4% annual interest. In 5 years, you add $10000 to your account, but the rate on your account
1. 0 answers
2. asked by Basil
3. 967 views
solve if x=student price and y =adult price and 2y + 5x=77 and 2y + 7x=95 what are the price for admission for both adult and
1. 4 answers
2. asked by connie
3. 963 views
Hi, I just want to make sure I am doing this right:Construct a relation on the set {a, b, c, d} that is a) reflexive, symmetric,
1. 0 answers
2. asked by Confused!!
3. 945 views
A 1,440-N crate is being pushed across a level floor at a constant speed by a force of 250 N at an angle of 20.0° below the
1. 1 answer
2. asked by greg
3. 943 views
A child 4 feet tall casts a shadow 6 feet long. A nearby tree casts a shadow 27 feet long. How tall is the tree?
1. 2 answers
2. asked by susan
3. 920 views
Find the following limits algebraically or explain why they don’t exist.lim x->0 sin5x/2x lim x->0 1-cosx/x lim x->7 |x-7|/x-7
1. 1 answer
2. asked by angie
3. 919 views
For the system CaO(s) + CO2(g) = CaCO3(s), I added 1.00 mol of CaO(s) to 1.00L of 0.500M CO2(g) at 200 oC. At equilibrium the
1. 3 answers
2. asked by Hannah
3. 914 views
An Olympic diver performs a dive from the 10 m platform and achieves a speed of 14 m/s just before entering the water.
1. 0 answers
2. asked by Timmy
3. 882 views
Piagets famous -----------problem demonstrates preoperational children'sdifficulity with---------- A. three mountains; dual
1. 1 answer
2. asked by sarah
3. 881 views
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point
1. 0 answers
2. asked by Hector
3. 878 views
Lets say you had a book you bought at the book fair for $4.99. at a book order diouloge, there was a 10 book set for $27 with
1. 1 answer
2. asked by Celest
3. 870 views
What kind of chemical bonding(chemical elemants) occurs in bricks, elastic, and rope
1. 0 answers
2. asked by long
3. 870 views
a. 1/2 times 1/3b. 3/4 times 1/3
1. 1 answer
2. asked by Mary
3. 857 views
The coordinates of the vertices of CDE are C(1, 4), D(3, 6), and E(7, 4). If the triangle is reflected over the line y = 3, what
1. 1 answer
2. asked by roxie
3. 848 views
A mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the totalpressure if partial pressure
1. 1 answer
2. asked by HELP!!!
3. 837 views
Yow do you get super glue off your skin? I was doi9ng a project and it is stuck to my fingers. My step-sister is typing this
1. 6 answers
2. asked by ☻i♥zee☻
3. 835 views
Anna did a survey on the weight of students' backpacks at her middle school. The weights, in pounds, of 10 backpacks are listed
1. 1 answer
2. asked by brianna
3. 832 views
Using this data,2 NO(g) + Cl2(g) == 2 NOCl(g) Kc = 3.20 X 10-3 NO2(g) == NO(g) + ½ O2(g) Kc = 3.93 calculate a value for Kc for
1. 0 answers
2. asked by Hannah
3. 821 views
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0
1. 1 answer
2. asked by Frank
3. 819 views
For the system CaO(s) + CO2(g) = CaCO3(s), I added 1.00 mol of CaO(s) to 1.00L of 0.500M CO2(g) at 200 oC. At equilibrium the
1. 5 answers
2. asked by Hannah
3. 804 views
vowels:r-controlleddirections replace the sound in each word with the correct combination of letters. choose one of the
1. 2 answers
2. asked by dw
3. 804 views
Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem.y' = 5x + y^2,
1. 1 answer
2. asked by Carlton
3. 800 views
Using this data,2 NO(g) + Cl2(g) == 2 NOCl(g) Kc = 3.20 X 10-3 NO2(g) == NO(g) + ½ O2(g) Kc = 3.93 calculate a value for Kc for
1. 3 answers
2. asked by Hannah
3. 790 views
Whice statement about public opinion polls is NOT True?a) in modern election campaigns, politicians have almost never used
1. 1 answer
2. asked by tina
3. 784 views
Tracey is contemplating the purchase of 100 shares of a stock selling for 15 per share. The stock pays no dividends. Her broker
1. 0 answers
2. asked by Anonymous
3. 777 views
How many moles of NaOH per liter of solution would you expect to have in a solution that is labeled "0.105 M NaOH" on the side
1. 1 answer
2. asked by Carla
3. 776 views
For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system
1. 1 answer
2. asked by Hannah
3. 755 views
Name and explain 3 checks and balances that are in place in South Africa that control and regulate media
1. 3 answers
2. asked by D.A MOKOMA SECONDARY
3. 749 views
You're on a magic bridge floating 25 meters above a lake. You through a rock at an angle of sixty degrees. It takes 5.8 seconds
1. 3 answers
2. asked by Nicole
3. 743 views
When chemists compare the rates of reactions carried out under different conditions, they often compare the rates near the
1. 0 answers
2. asked by Alana
3. 735 views
The coefficient of static friction between a block and a horizontal floor is 0.40, while the coefficient of kinetic friction is
1. 3 answers
2. asked by tharidu
3. 733 views
Identify the capitalized part of speech in the following sentence:Unless you come to class and complete the work, you will learn
1. 4 answers
2. asked by toney
3. 733 views
At local community college, it costs $150 to enroll in a morning section of an algebra course. Suppose that the variable n
1. 2 answers
2. asked by Joyce
3. 732 views
What are the problems faced by native americans in their journey from central asis to present day state of washington?
1. 2 answers
2. asked by lisa
3. 727 views
I am confused as to how to solve the below problem. I am not sure which formula to use. At first I thought I calculate the molar
1. 1 answer
2. asked by Julie
3. 712 views
A roller coaster reaches the top of the steepest hill with a speed of 3.0 . It then descends the hill, which is at an average
1. 1 answer
2. asked by Mona
3. 711 views

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